Disk drill.



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UNITED STATES PATENT OFFICE.

CHARLES I. SESTER, OF PEORIA, ILLINOIS.

DISK DRILL.

SPECIFICATION forming partof Letters Patent No. 643,829, dated February20, 1900. Application tiled August 26,1899. SerialNo. 728,641. (Nomodel.)

T0 all whom, it may concern:

Be it known that I, CHARLES P. SEsrEE, a citizen of the United States,residing at Peoria, in the county of Peoria and State of Illinois, haveinvented certain new and useful Improvements in Disk Drills; and I dohereby declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to an improvement in the construction of diskdrills, and has for its object the provision of a concave disk providedWith a suitable hub substantially coneshaped, of a sleeve on which saidhub is carried, and in the provision of a cone-shaped spindle projectingout from and forming a part of the boot in which the grain-spout iscarried, and of certain other details hereinafter more fully described.

That my invention may be more fully understood, reference is had to theaccompanying drawings, in Which- Figure I is an elevation of my improveddisk and its coactin g parts. Fig. 2 is a vertical cross-section of thesame somewhat enlarged. Fig. 3 is a cross-section. Fig. 4 is a detailedview.

In the drawings, A represents a concave disk provided with a hub a onits concave surface. d is a cone-shaped bearing extending out from thehub a and through the disk to a suitable point beyond.

B is a sleeve on which the bearing rotates, which is also cone-shapedand is provided with a flange b. On its enlarged end the boot isprovided with a cone-shaped spindle C, on which the sleeve B is carried,and is further provided With a sand-box formed of the circumferentialflange extension C', which is slipped over and has a bearing relationwith the cone-shaped extension a', and c is an oilcup which forms a partof the sand-box.

D is a cap or washer slipped in a depression provided in the hub d, andd is a bolt retaining the parts in proper relation to each other.

yOne object in view is to provide a journalsupport for disk seederswhich Will be perfectly free from any danger of dirt or sand gettingonto the spindle, which eventually Wears away the same and causes thesame to clog; and a further object is to provide, as has been shown, amuch larger bearing-surface for the hub of the disk which gives littlechance of wearing away and presents a perfectly-rigid disk in itsrotation and stops all Wabbling of the same.

Having thus fully described my invention, what l claim, and desire tosecure by Letters Patent, is

l. In a disk drill, the combination with a concave disk provided With asubstantiallycone-shaped hub, of a cone-shaped spindle projecting outfrom and forming a part of the grain-boot, a removably-carried sleeveinterposed between said spindle and the hub of the disk and formingabearing therefor, a-

circumferentially-carried ange around said spindle and forming acovering for the hub of the disk, in the manner as and for the purposedescribed.

2.' In a disk drill, the combination with the concave disk A, providedwith the hub a, and the cone-shaped bearing a', extending rearwardlythrough said disk, the removably-carried sleeve B, journaled on thespindle O, of the sand-box formed of the circumferential auge extensionlC, and the rectangular bolt d, andoil-cup c, substantially as and forthe purpose set forth.

3. In a grain-drill, the combination with a support having a disktrunnion and a hubseat provided with an annular ange of a removablesleeve having a notched ange and a disk having attached thereto ahubprovided with a groove adapted to receive the ange around the seat intheframe-support, all substantially as specified.

4t. The combination, with a rotating disk arranged at an angle to theline of draft provided with a hub attached thereto having an annulargroove in one end and an annular seat in the other end, of a supportprovided With a seat therein and an annular ange surrounding the lseatand a trunnion extending out of said seat and a removable sleeveintervening between the tru'nnion and the hub, substantially asspecified.

5. The combination, with a rotating disk arranged at an angle to theline of draft provided With a hub attached thereto having an annulargroove in one end and an annular seat in the other end, of a supportprovided IOO with a seat therein having,` a lug in the bottom of theseat and an annular flange surrounding the seat and a trunnion extendingout of Said seat and a removable sleeve provided with a notched Hang@intervening between the trnnnion and the hub, substantially asspecified.

G. The combination, with a rotating disk arranged at an angle to theline of draft provided with a hub attached thereto having an annular`groove in one end and an annular seat in the other end, of a supportprovided with a seat therein having a lng in the bottom of the seat andan annular flange surround- CHARLES P. SESTER.

Witnesses:

L. J. LIEBENSTEIN, CHAS. W. LA PORTE.

